Toshiba Tosvert VF-AS1 - Manual (Page 133)

E6581301
F-21
6
■ Adjustment with continuous signals (Parameter setting example 1)
Set parameters as follows to adjust the output frequency up or down in proportion to the frequency adjustment signal
input time:
Panel frequency incremental gradient = H/H setting time
Panel frequency decremental gradient = H/H setting time
Set parameters as follows to adjust the output frequency up or down almost in synchronization with the adjustment by
the panel frequency command:
H = H =
(CEE (or H) /HJ) (H/H setting time)
(FGE (or H) /HJ) (H/H setting time)
«Sample sequence diagram 1: Adjustment with continuous signals»
The dotted line represents the actual output frequency.
Frequency 0 Hz
Lower limit frequency
Upper limit frequency
Decrementing (DOWN) signal
Incrementing (UP)
RUN command
Set frequency clearing signal
Command frequency [Hz]
Gradient H/H
Gradient H/H
■ Adjustment with pulse signals (Parameter-setting example 2)
Set parameters as follows to adjust the frequency in steps of one pulse:
H , H Pulse ON time
H , H = Frequency obtained with each pulse
* The inverter does not respond to any pulses with an ON time shorter than set with H or H. 12ms
or more of clearing signal is allowed.
«Sample sequence diagram 2: Adjustment with pulse signals»
Operation command (such as F)
Incrementing (UP) signal
Decrementing (DOWN) signal
Clear signal
Upper limit frequency
0Hz
Command frequency [Hz]
(The dotted line represents
the actual output frequency.)
H H
H
H